Download or read book Study and Characterization of Insulating Material Using Partial Discharge Measurements for Power Electronics Application in HVDC and MVDC written by Somya Anand and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: For future smart grid infrastructures, utilizing the capabilities of recently introduced wide band gap (WBG) devices can significantly reduce the weight, volume and maturation cost of power electronic applications. However, the presence of these devices in the power network will introduce a new electrical constraint in the form of repetitive fast rising square voltage waveforms characterized by high repetition rate. These waveforms might influence the discharge mechanism of insulation system of power equipment in a way, different than AC. Under such circumstances, it becomes necessary to investigate the reliability of power conversion equipment of the future transmission network such as medium frequency transformer (MFT). For high power application, the insulation system of MFT is expected to incorporate dielectric liquid as its primary insulation medium. However, the discharge mechanism of dielectric liquid under fast repetitive square voltage is not very clear today. Therefore, this thesis aims to investigate the partial discharge (PD) mechanism under square voltage waveform to address power electronic applications like MFT. For this, the specifications of a test bench are defined and developed during this thesis to reproduce the electrical stresses in the form of a fast rising unipolar square voltage and switching frequencies above 50 Hz. As the PD measurement under fast rising square voltages is difficult due to electromagnetic interferences caused by high speed switching, the PD detection by optical detection is chosen, which detects the photons emitted during discharge events. To achieve the goal, in the first step the optical detection technique is validated under AC 50 Hz by comparing it to the standard electrical measurement. Then, PD measurements are performed under square voltage waveforms and the results are compared to the AC excitations to understand the impact of non-sinusoidal stress. This work presents the development of a test bench which can generate unipolar square voltage (USV) waveforms with dV/dt between 10-100 kV/μs at 20 kV. It demonstrated optical sensor as a decent partial discharge indicator under high dV/dt. Further, the test bench is assessed to measure partial discharges under varying USV parameters such as changing rise times, repetition rates and duty cycles.

Download or read book High Voltage Insulating Materials Current State and Prospects written by Pawel Rozga and published by MDPI. This book was released on 2021-09-07 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies on new solutions in the field of high-voltage insulating materials are presented in this book. Most of these works concern liquid insulation, especially biodegradable ester fluids; however, in a few cases, gaseous and solid insulation are also considered. Both fundamental research as well as research related to industrial applications are described. In addition, experimental techniques aimed at possibly finding new ways of analysing the experimental data are proposed to test dielectrics.

Download or read book Electrical Insulating Materials written by M. M. Hirschler and published by ASTM International. This book was released on 2000 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Contains papers presented at the March 1999 symposium held in Seattle, Washington, with sections on standards, electrical insulating fluids, electrical tests, and fire issues. Specific topics include fire hazard testing in the International Electrotechnical Commission Standards, specification issues associated with the development of an agriculturally based biodegradable dielectric fluid, electrochemical stability of mineral insulating oils, standardized testing procedures and developments in partial discharge measurement, and comparative tracking index of flame-retardant nylon and PBT. The editor is affiliated with GBH International. Annotation copyrighted by Book News, Inc., Portland, OR.

Download or read book High Voltage Insulation Technology written by Dieter Kind and published by Springer-Verlag. This book was released on 2013-07-02 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Electrical and Electronic Insulating Materials written by W. Tillar Shugg and published by Wiley-IEEE Press. This book was released on 1995 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering virtually all classes of insulating materials for electrical and electronic applications, this handbook offers immediate access to detailed information in one easy-to-use source. Included are major producers, technologies, methods of manufacture, trades, applicable standards and specifications, properties, uses, development programs, and market trends. Complete with a wealth of data and lacking in technical jargon, this book will be invaluable to electrical and electronics engineers who need to make informed choices about dielectric and electrical insulation materials as well as electrical engineering students in need of a comprehensive reference.

Download or read book Condition Monitoring of Composite Insulator Using Partial Discharge Analysis written by Ida Ayu Dwi Giriantari and published by . This book was released on 2003 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electrical Insulation Measurements written by William Percival Baker and published by Chemical Publishing Company. This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents - Preface - 1. The Physical Background - 2. The Chemical Background - 3. The Measurement of Resistivity - 4. Dispersion - 5. Gaseous Dielectrics - 6. The Breakdown of Solid Dielectrics - 7. The Measurement of Dielectric Loss - 8. Special Techniques for Liquids - 9. Tests on Complete Equipment - Index -

Download or read book Condition Monitoring of Composite Insulator Using PD Analysis written by Ida Ayu Dwi Giriantari and published by LAP Lambert Academic Publishing. This book was released on 2009-09 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written based on study that has been performed with the aim of investigating the use of the partial discharge (PD)measurement technique for use as an assessment tool of the composite insulator condition. A computer-based discharge analyser was utilised to study the phase-resolved PD patterns and their statistical distributions, and also PD scatter plots. The full PD impulse waveforms with their frequency spectra were also studied by using a high frequency current transformer (HF-CT) to be able to study a wide range of frequency components of the PD signals and to study the possibility of doing on-line PD measurement in service using such a method. The results of the computer discharge analyser have shown a quite good correlation to change of the insulator surface condition. It was also found when high frequency components appeared, surface deterioration could be expected to have occurred. The use of PD measurements in identifying artificial defects on composite insulators found that PD detection of such defects also gave an indication of location of hole type defects on the insulator.

Download or read book Characterisation of Partial Discharge Phenomenon in High Voltage Insulation Using Finite Element Method and Matlab Simulink written by Hadi Nabipour Afrouzi and published by . This book was released on 2015 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Power Transformer Condition Monitoring and Diagnosis written by Ahmed Abu-Siada and published by Institution of Engineering and Technology. This book was released on 2018-05-01 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power transformers are a key asset for electricity utilities around the globe. However, aging populations of large power transformers require reliable monitoring and diagnostics techniques to extend the asset's lifetime and minimise the possibility of catastrophic failure. This book describes the most popular power transformer condition monitoring techniques from principles to practice.

Download or read book Integration of Distributed Generation in the Power System written by Math H. J. Bollen and published by John Wiley & Sons. This book was released on 2011-08-04 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: The integration of new sources of energy like wind power, solar-power, small-scale generation, or combined heat and power in the power grid is something that impacts a lot of stakeholders: network companies (both distribution and transmission), the owners and operators of the DG units, other end-users of the power grid (including normal consumers like you and me) and not in the least policy makers and regulators. There is a lot of misunderstanding about the impact of DG on the power grid, with one side (including mainly some but certainly not all, network companies) claiming that the lights will go out soon, whereas the other side (including some DG operators and large parks of the general public) claiming that there is nothing to worry about and that it's all a conspiracy of the large production companies that want to protect their own interests and keep the electricity price high. The authors are of the strong opinion that this is NOT the way one should approach such an important subject as the integration of new, more environmentally friendly, sources of energy in the power grid. With this book the authors aim to bring some clarity to the debate allowing all stakeholders together to move to a solution. This book will introduce systematic and transparent methods for quantifying the impact of DG on the power grid.

Download or read book Applications of Power Electronics written by Frede Blaabjerg and published by MDPI. This book was released on 2019-06-24 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power electronics technology is still an emerging technology, and it has found its way into many applications, from renewable energy generation (i.e., wind power and solar power) to electrical vehicles (EVs), biomedical devices, and small appliances, such as laptop chargers. In the near future, electrical energy will be provided and handled by power electronics and consumed through power electronics; this not only will intensify the role of power electronics technology in power conversion processes, but also implies that power systems are undergoing a paradigm shift, from centralized distribution to distributed generation. Today, more than 1000 GW of renewable energy generation sources (photovoltaic (PV) and wind) have been installed, all of which are handled by power electronics technology. The main aim of this book is to highlight and address recent breakthroughs in the range of emerging applications in power electronics and in harmonic and electromagnetic interference (EMI) issues at device and system levels as discussed in ‎robust and reliable power electronics technologies, including fault prognosis and diagnosis technique stability of grid-connected converters and ‎smart control of power electronics in devices, microgrids, and at system levels.

Download or read book Submarine Power Cables written by Thomas Worzyk and published by Springer Science & Business Media. This book was released on 2009-08-11 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The demand for high-performance submarine power cables is increasing as more and more offshore wind parks are installed, and the national electric grids are interconnected. Submarine power cables are installed for the highest voltages and power to transport electric energy under the sea between islands, countries and even continents. The installation and operation of submarine power cables is much different from land cables. Still, in most textbooks on electrical power systems, information on submarine cables is scarce. This book is closing the gap. Different species of submarine power cables and their application are explained. Students and electric engineers learn on the electric and mechanic properties of submarine cables. Project developers and utility managers will gain useful information on the necessary marine activities such as pre-laying survey, cable lay vessels, guard boats etc., for the submarine cable installation and repair. Investors and decision makers will find an overview on environmental aspects of submarine power cables. A comprehensive reference list is given for those who want further reading.

Download or read book Simulation and Modelling of Electrical Insulation Weaknesses in Electrical Equipment written by Ricardo Albarracín Sánchez and published by BoD – Books on Demand. This book was released on 2018-10-17 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Around 80% of electrical consumption in an industrialised society is used by machinery and electrical drives. Therefore, it is key to have reliable grids that feed these electrical assets. Consequently, it is necessary to carry out pre-commissioning tests of their insulation systems and, in some cases, to implement an online condition monitoring and trending analysis of key variables, such as partial discharges and temperature, among others. Because the tests carried out for analysing the dielectric behaviour of insulation systems are commonly standardised, it is of interest to have tools that simulate the real behaviour of those and their weaknesses to prevent electrical breakdowns. The aim of this book is to provide the reader with models for electrical insulation systems diagnosis.

Download or read book Power System Restructuring and Deregulation written by Loi Lei Lai and published by John Wiley & Sons. This book was released on 2001-11-28 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die Umstrukturierung und Liberalisierung der Stromerzeugung brachte tiefgreifende Veränderungen des Marktes, des Wettbewerbs, der Technologien und nicht zuletzt der gesetzlichen Vorschriften mit sich. Dieser Band konzentriert sich auf die technischen Fortschritte und bespricht derzeit aktuelle Probleme anhand anschaulicher Fallstudien. So werden zum Beispiel neue Verfahren zur Vorhersage der Netzlast erläutert. Von international renommierten Experten geschrieben! (07/00)

Download or read book Power Electronics and Renewable Energy Systems written by C. Kamalakannan and published by Springer. This book was released on 2014-11-19 with total page 1546 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a collection of high-quality peer-reviewed research papers presented in the Proceedings of International Conference on Power Electronics and Renewable Energy Systems (ICPERES 2014) held at Rajalakshmi Engineering College, Chennai, India. These research papers provide the latest developments in the broad area of Power Electronics and Renewable Energy. The book discusses wide variety of industrial, engineering and scientific applications of the emerging techniques. It presents invited papers from the inventors/originators of new applications and advanced technologies.

Download or read book Advances in Smart Grid Technology written by Pierluigi Siano and published by Springer Nature. This book was released on 2020-09-22 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises the select proceedings of the International Conference on Power Engineering Computing and Control (PECCON) 2019. This volume focuses on the different renewable energy sources which are integrated in a smart grid and their operation both in the grid connected mode and islanded mode. The contents highlight the role of power converters in the smart grid environment, battery management, electric vehicular technology and electric charging station as a load for the power network. This book can be useful for beginners, researchers as well as professionals interested in the area of smart grid technology.